果园套种留兰香的生物防治作用与生态经济效益分析

在野外小区试验的基础上，对果园套种留兰香生物防治果树虫害的作用及其生态经济效益进行了研究和分析，结果表明：果园套种留兰香对潜叶蛾、柑橘凤蝶和桃蚜等果树害虫有明显的生物防治效果；在坡地果园套种留兰香能有效减轻水土流失、改善土壤的理化性状，促使果树的生长和提高果树的产量，并具有良好的经济效益

Analysis on Biological Control Effect and EconomicBenefit of Interplanting Metha Spicata with Orchard

The biological control effect on fruit tree insects and eco-economic benefit of interplanting Mentha Spicata with orchard was studied and analysed based on field polt experiment.The result shows:interplanting Mentha Spicata with orchard have obviously biological control effect on fruit tree insects like Phyuoenistis eitrella Stainton,Papilio xuthus L,Phyllocoptruta oleivora Ashmead and Myzus perieas Sulzer ect,interphanting Mentha Spicata with slope orchard could reduce soil and water losses,and improve soil physical-chemistry property effectively,its also accelerate fruit tree growth and increase the yield of fruit tree,and has good economic benefit.